Exam 1

1. Metainformation

   Tag	Value
   file	Probability_vufsw-elementary_probability-1269-en_vufsw-elementary_probability-1269-en
   name	vufsw-elementary probability-1269-en
   section	probability/elementary probability
   type	schoice
   solution	FALSE, TRUE, FALSE, FALSE
   Type	conceptual
   Program	NA
   Language	English
   Level	statistical reasoning

   Question

   The magazine ‘Cosmopolitan’ suggests that women who skip breakfast have a greater chance of being pregnant with a girl, while women who do have breakfast are more likely to be pregnant with a boy. To test this, we took a sample of pregnant women who were already familiar with the sex of their child. We asked them about the sex of their baby and whether or not they had breakfast every day. Given that a woman does have breakfast, what is the likelihood of a boy?

   
   
   1. FALSE: The number that gets a boy and not had breakfast / the number that gets a boy and had breakfast.
   2. TRUE: The number that gets a boy and had breakfast / the number that had breakfast.
   3. FALSE: The number that gets a boy and had breakfast / the number that gets a boy receives and not had breakfast.
   4. FALSE: The number that gets a boy and had breakfast / the number that not had breakfast.
   
   

   Solution

   The likelihood of getting a boy for a woman that did have breakfast is: The number that gets a boy and had breakfast / the number that had breakfast.

   
   
   1. False
   2. True
   3. False
   4. False